Species · BCR 14 · BBS 2025 Release · 1966–2024

Vesper Sparrow In Atlantic Northern Forest

All regions Atlantic Northern Forest Grassland birds

Vesper Sparrow in Atlantic Northern Forest has collapsed: down 97% on the route-weighted index since 1968.

-97%Since 1968

77Routes In Region

53Years

Notable Signals

long arc declinecomputed index

Vesper Sparrow has collapsed in Atlantic Northern Forest: down 97% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Vesper Sparrow in Atlantic Northern Forest is projected to stay roughly flat through 2024, near 0.00 (95% range 0.00–0.49). A 5-year backtest shows a typical error of ±1236.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2024

0.00Projected 2024 index

0.00–0.4995% range

±1236.1%Backtest error

Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.

Year	Projected index	95% low	95% high
2020	0.00	0.00	0.49
2021	0.00	0.00	0.49
2022	0.00	0.00	0.49
2023	0.00	0.00	0.49
2024	0.00	0.00	0.49

Routes In Atlantic Northern Forest

Routes recording Vesper Sparrow in Atlantic Northern Forest.

Deblois	MAINE	9	2007
Fletcher	VERMONT	7	1985
Benton	MAINE	4	1971
Northfield	MAINE	4	1981
Benedicta	MAINE	4	1977
Ashland	MAINE	4	1996
Dexter Lake	NEW-YORK	4	1968
Harmony	MAINE	3	2003
Peterborough	NEW-HAMPSHIRE	3	1971
Sciota	NEW-YORK	3	1968
East Haven	VERMONT	3	1992
Biddeford	MAINE	2	1977
Bowdoin Ctr	MAINE	2	1971
Cooper	MAINE	2	2005
Seboomook Lk	MAINE	2	2007
N Orange	MASSACHUSETTS	2	1968
Hopkinton	NEW-HAMPSHIRE	2	1971
Wilmot	NEW-HAMPSHIRE	2	1968
Walpole	NEW-HAMPSHIRE	2	1970
Marlow	NEW-HAMPSHIRE	2	1967
Dixvil Notch	NEW-HAMPSHIRE	2	1970
Number Four	NEW-YORK	2	1975
Underwood	NEW-YORK	2	1988
Gaysville	VERMONT	2	1978
Greensboro	VERMONT	2	2000

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.